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HD 179421


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MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington
MK spectral classifications are given for 591 stars which are used fortime and latitude observations at Mizusawa and Washington. Theclassifications in the MK system were made by slit spectrograms ofdispersion 73 A/mm at H-gamma which were taken with the 91 cm reflectorat the Okayama Astrophysical Observatory. Photometric observations in UBV were made with the 1-meter reflector at the Flagstaff Station of U.S.Naval Observatory. The spectrum of HD 139216 was found to show a strongabsorption line of H-beta. The following new Am stars were found:HD9550, 25271, 32784, 57245, 71494, and 219109. The following new Apstars were found: HD6116, 143806, 166894, 185171, and 209260. The threestars, HD80492, 116204, and 211376, were found to show the emission inCaII H and K lines.

UBV Photoelectric Photometry of 259 PZT Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980PASP...92..215G&db_key=AST

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Observation and Astrometry data

Constellation:Λύρα
Right ascension:19h10m50.62s
Declination:+39°10'18.0"
Apparent magnitude:8.152
Distance:229.358 parsecs
Proper motion RA:20.2
Proper motion Dec:23.6
B-T magnitude:9.742
V-T magnitude:8.284

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 179421
TYCHO-2 2000TYC 3121-527-1
USNO-A2.0USNO-A2 1275-10886211
HIPHIP 94221

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